A cyclist competes in a one-lap race around a flat, circular course of radius, r. Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in a time (delta)T. The mass of the bicycle (including the rider) is m. What is the magnitude of the net force acting on the bicycle as it crosses the finish line?
Express the net force in terms of r, (delta)t, m, and "pi".
In class we are working on using the radial and tangental and I do not need to solve the problem, just need to write out the net force with the above variables.
thanks!
2006-11-05 07:59:15 · 1 answers · asked by Mich W 1 in Science & Mathematics ➔ Physics
Distance traveled, D = 2pi r
Constant tangental acceleration, At = 2D/T^2
Final speed, Vf = At*T
Radial acceleration Ar = Ar = (Vf^2)/r
Total acceleration A = root(At^2 + Ar^2)
Net force, Fn = mA = _______ (to be filled in by student using above info)
2006-11-05 08:10:58 · answer #1 · answered by Steve 7 · 0⤊ 0⤋